Phylogenetic analysis of porcine circovirus type 2 (PCV2) isolates from China with high homology to PCV2c.

Arch Virol

State Key Laboratory for Molecular Biology of Special Economic Animals, Institute of Special Economic Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, 4899 Juye Street, Changchun, 130112, Jilin, People's Republic of China.

Published: June 2016

AI Article Synopsis

  • Porcine circovirus type 2 (PCV2) is a significant pathogen in pigs, causing various diseases and economic losses in the swine industry globally.
  • The study evaluated 12 PCV isolates through genetic analysis, discovering a new group of PCV specifically in China.
  • Notably, some isolates showed a high similarity in a specific genome region with a Danish PCV2c strain, indicating a possible transport of the virus from Denmark to China.

Article Abstract

Porcine circovirus type 2 (PCV2) is an important emerging pathogen that has been causatively associated with multifactorial disease syndromes in pigs and other species. It has a worldwide distribution and causes significant economic losses in the swine industry. Its genome is dynamically evolving through recombination and mutation, and the circulating genotypes of PCV2 strains in Asia are PCV2a, PCV2b and PCV2d. In this study, 12 PCV isolates were evaluated and identified by amplification, sequencing, and phylogenetic analysis, and the results revealed a new monophyletic group of PCV in China. More importantly, three of these isolates shared high homology within the ORF1 region with a strain of genotype PCV2c that was detected only in Denmark. Phylogeographic analysis of these isolates suggested that the isolates may have arisen in Denmark and that they were then transported to China.

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Source
http://dx.doi.org/10.1007/s00705-016-2823-xDOI Listing

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